Good used will have utensil marks and show some wear. Good lightly used has utensil marks, very light wear. Good very lightly used might have a few utensil marks, very light wear. Almost new, means I see no real signs of wear of any kind but won't sell as new. New means I know they are NEW.
I'm sorry but FLAT RATE boxes can not be combined. I have been packing breakables and dishes for years! I use fresh bubble wrap and packing peanuts, and as I pack thousands of dishes each year, I do it very well. However I use the postal service and at times they do not understand the word "FRAGILE", or they have seasonal workers. This is why I insure all boxes.
If your order does have any damage, you are required to keep the box, all packing materials and the damaged item for any claim. May you always know that God loves You!